I've been using devede, it seems to support multisession but i seldom use it. Last time i did, the iso worked fine but my home dvd-player wouldn't read the disc :(
For burning you can also try growisofs. HTH -- () ascii ribbon campaign - against html e-mail /\ ascii-rubanda kampajno - kontraŭ html-a retpoŝto -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org